Ablutionary Valve Assembly for Precise Non-Zero Flow Control
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Solution Overview
Problem
Existing fluid flow control systems for ablutionary fittings lack fine user control and consistent non-zero fluid flow rates, often requiring replacement of components for uniform discharge and failing to adapt to varying water pressures.
Innovation Solution
A fluid flow control valve assembly with a first and second flow control member, actuated by a linear or rotatable mechanism, allowing adjustable flow rates through user-operable means such as levers or rotary controls, ensuring continuous and adjustable fluid flow without zero flow conditions, and accommodating different water pressures through adjustable operating member lengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional fluid flow control system is used, then the structure is simple, but the user control precision over flow rate is insufficient
Solution Approach 1:
The valve assembly is segmented into multiple functional components: a first flow control member with flow channels, a second flow control member with a blocking portion, and a lever mechanism with linkage elements. This segmentation allows each component to perform a specific function (flow distribution, flow blocking, motion transmission) and enables fine control of flow rate through coordinated movement of multiple elements rather than a single control mechanism.
2Reliability
If a conventional valve design is used, then the device is simple, but it cannot ensure consistent non-zero fluid flow rates
Solution Approach 1:
The first flow control member is pre-configured with multiple flow channels that are always open, establishing a baseline non-zero flow path. The second flow control member with its blocking portion is designed to partially obstruct these channels rather than completely close them, ensuring that some flow always passes through. This preliminary configuration of flow paths and blocking geometry guarantees consistent non-zero flow rates.
Solution Approach 2:
The blocking portion of the second flow control member is designed with specific local geometry to obstruct only certain portions of the flow channels while leaving other paths open. This local quality control allows selective blocking of flow paths to maintain a minimum flow rate while still providing user-adjustable flow control, ensuring reliable non-zero flow output.
3Adaptability or versatility
If a fixed control mechanism is used, then the device is simple, but it cannot adapt to varying water pressures
Solution Approach 1:
The lever mechanism is designed as a dynamic system where the effective length from the pivot to the operating point can be adjusted. This allows the valve to adapt to varying water pressures by changing the mechanical advantage and control characteristics. The dynamic adjustability enables the same valve assembly to work effectively across a range of pressure conditions without requiring replacement or complex electronic controls.
4Ease of operation
If fine flow control is implemented, then user control precision is improved, but the device complexity increases
Solution Approach 1:
The lever mechanism acts as an intermediary between the user's simple linear or rotational input and the complex coordinated movement of the second flow control member. The linkage elements and pivot points in the lever mechanism translate simple user motion into precise control of the blocking portion's position relative to the flow channels, providing fine flow control without requiring the user to directly manipulate complex multi-component mechanisms.
Data Source
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AI summary
A fluid flow control valve assembly for controlling a flow of fluid through an ablutionary fitting comprising: a fluid flow control valve comprising: a first flow control member (109) comprising one or more flow channels; a second flow control member (116) disposed adjacent to the first flow control member, wherein the second flow control member is moveable relative to the first flow control member; a first valve actuator arranged to cause movement of the second flow control member relative to the first flow control member; and an operating member operably connected to the first valve actuator; wherein, in use, the operating member is operable to be moved in a linear direction and the operating member acts in turn on the first valve actuator to move the second flow control member, wherein movement of the second flow control member adjusts the position of the second flow control member relative to the one or more flow channels in the first flow control member such that a flow rate through the fluid flow control valve may be increased or decreased.